Electronic device

ABSTRACT

An electronic device is provided. The electronic device includes: a first substrate structure and a second substrate structure. The first substrate structure has first overlapping region, first two protruding regions, a second overlapping region, second two protruding regions, and third two protruding regions. One of the first overlapping region and the second overlapping region is located between the third two protruding regions. The second substrate structure is disposed opposite to the first substrate structure and includes a main spacer and a sub spacer. The main spacer overlaps the first overlapping region of the first substrate structure. The sub spacer overlaps the second overlapping region of the first substrate structure. The first overlapping region is located between the first two protruding regions, and the second overlapping region is located between the second two protruding regions.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a Continuation of pending U.S. patent applicationSer. No. 17/978,897, filed Nov. 1, 2022 and entitled “ELECTRONICDEVICE,” which is a Continuation of pending U.S. patent application Ser.No. 17/235,845, filed Apr. 20, 2021 and entitled “DISPLAY PANEL ANDELECTRONIC DEVICE”, the entirety of which are incorporated by referenceherein.

BACKGROUND Field of the Disclosure

The present disclosure relates to a display panel and an electronicdevice, and in particular to a display panel and a display deviceincluding a substrate with different heights for positioning thespacers.

Description of the Related Art

Display panels are commonly used in electronic devices (i.e. displaydevices). The substrates of existing display panels may shift due tostress, and the spacers between the substrates may misalign, which maydamage the display panels. The stability of display panels still needsto be improved. Therefore, finding a way to solve the above problem hasbecome an important issue.

BRIEF SUMMARY

Some embodiments of the disclosure provide an electronic device,including a first substrate structure and a second substrate structure.The first substrate structure has first overlapping region, first twoprotruding regions, a second overlapping region, second two protrudingregions, and third two protruding regions. One of the first overlappingregion and the second overlapping region is located between the thirdtwo protruding regions. The second substrate structure is disposedopposite to the first substrate structure and includes a main spacer anda sub spacer. The main spacer overlaps the first overlapping region ofthe first substrate structure. The sub spacer overlaps the secondoverlapping region of the first substrate structure. The firstoverlapping region is located between the first two protruding regions,and the second overlapping region is located between the second twoprotruding regions.

A detailed description is given in the following embodiments withreference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The present disclosure can be more fully understood by reading thesubsequent detailed description and examples with references made to theaccompanying drawings, wherein:

FIG. 1 is a top view illustrating a display panel in accordance withsome embodiments of the present disclosure.

FIG. 2 is a cross-sectional view illustrating the display panel inaccordance with some embodiments of the present disclosure.

FIG. 3 is a cross-sectional view illustrating the display panel inaccordance with some embodiments of the present disclosure.

FIG. 4 is a cross-sectional view illustrating the display panel inaccordance with some embodiments of the present disclosure.

FIGS. 5A, 6A, and 7A are top views illustrating the first substratestructure in accordance with some embodiments of the present disclosure.

FIGS. 5B, 6B, and 7B are top views illustrating the second substratestructure in accordance with some embodiments of the present disclosure.

FIG. 8 is a cross-sectional view illustrating the first substratestructure in accordance with some embodiments of the present disclosure.

FIG. 9 is a cross-sectional view illustrating the bulging structure inaccordance with some embodiments of the present disclosure.

FIG. 10 is a cross-sectional view illustrating the display panel inaccordance with some embodiments of the present disclosure.

DETAILED DESCRIPTION

The present disclosure may be understood referring to the followingdescription and the appended drawings. It is noted that for the sake ofthe comprehensibility and the simplicity of the drawings for thereaders, only a portion of the light-emitting unit is illustrated inmultiple figures in the present disclosure, and the specific componentin the figures are not drawn to scale. In addition, the number and sizeof each component in the drawings merely serve as an example, but arenot intended to limit the scope of the present disclosure. Furthermore,similar and/or corresponding numerals may be used in differentembodiments for describing some embodiments simply and clearly, but notrepresent any relationship between different embodiment and/orstructures discussed below.

Certain terms may be used throughout the present disclosure and theappended claims to refer to particular elements. Those skilled in theart will understand that electronic device manufacturers may refer tothe same components by different names. The present specification is notintended to distinguish between components that have the same functionbut different names. In the following specification and claims, thewords “including”, “comprising”, “having” and the like are open-endedwords, so they should be interpreted as meaning “including but notlimited to . . . ”. Therefore, when terms “including”, “comprising”,and/or “having” are used in the description of the disclosure, thepresence of corresponding features, regions, steps, operations and/orcomponents is specified without excluding the presence of one or moreother features, regions, steps, operations and/or components.

In addition, in this specification, relative expressions may be used.For example, “lower”, “bottom”, “higher” or “top” are used to describethe position of one element relative to another. It should be noted thatif a device is flipped upside down, an element that is “lower” willbecome an element that is “higher”.

When a corresponding component (i.e. a film layer or region) is referredto as “on another component”, it may be directly on another component,or there may be other components in between. On the other hand, when acomponent is referred “directly on another component”, there is nocomponent between the former two. In addition, when a component isreferred “on another component”, the two components have an up-downrelationship in the top view, and this component can be above or belowthe other component, and this up-down relationship depends on theorientation of the device.

The terms “about” or “substantially” are generally interpreted as within20% of a given value or range, or as interpreted as within 10%, 5%, 3%,2%, 1%, or 0.5% of a given value or range.

It should be understood that, although the terms “first”, “second” etc.may be used herein to describe various elements, regions, layers and/orportions, and these elements, regions, layers, and/or portions shouldnot be limited by these terms. These terms are only used to distinguishone element, component, region, layer, or portion. Thus, a firstelement, component, region, layer or portion discussed below could betermed a second element, component, region, layer or portion withoutdeparting from the teachings of some embodiments of the presentdisclosure. In addition, for the sake of brevity, terms such as “first”and “second” may not be used in the description to distinguish differentelements. As long as it does not depart from the scope defined by theappended claims, the first element and/or the second element describedin the appended claims can be interpreted as any element that meets thedescription in the specification.

In the present disclosure, the thickness, length, and width can bemeasured by using an optical microscope, and the thickness can bemeasured by the cross-sectional image in the electron microscope, but itis not limited thereto. In addition, a certain error may be present in acomparison with any two values or directions. If the first direction isperpendicular to the second direction, the angle between the firstdirection and the second direction may be between 85 degrees and 95degrees. If the first direction is parallel to the second direction, theangle between the first direction and the second direction may bebetween 0 degrees and 5 degrees.

It should be noted that the technical solutions provided by differentembodiments below may be interchangeable, combined or mixed to formanother embodiment without departing from the spirit of the presentdisclosure.

Unless defined otherwise, all terms (including technical and scientificterms) used herein have the same meaning as commonly understood by onehaving ordinary skill in the art to which this disclosure belongs. Itshould be appreciated that, in each case, the term, which is defined ina commonly used dictionary, should be interpreted as having a meaningthat conforms to the relative skills of the present disclosure and thebackground or the context of the present disclosure, and should not beinterpreted in an idealized or overly formal manner unless so defined inthe present disclosure.

FIG. 1 is a top view illustrating a display panel 10 in accordance withsome embodiments of the present disclosure. It should be understood thatonly some elements of the display panel 10 are illustrated in FIG. 1 forclarity. In accordance with some embodiments, additional features orelements may be optionally added to the display panel 10. In someembodiments, an electronic device may include the display panel 10. Forexample, the electronic device may include a display device, an antennadevice, a sensing device, or a tiled device, but it is not limitedthereto. The electronic device may be a bendable or flexible electronicdevice, but it is not limited thereto. The electronic device mayinclude, for example, liquid crystal, light-emitting diode (LED),fluorescence, phosphor, other suitable display medium or combinationsthereof, but not limited thereto. For instance, the LED may includeinorganic LED, organic LED (OLED), mini LED, micro LED or quantum dotLED (QLED or QDLED), other suitable material or any combination thereof,but the present disclosure is not limited thereto. The antenna devicemay be, for example, a liquid-crystal antenna, but it is not limitedthereto. The tiled device may be, for example, a display tiled device,or an antenna tiled device. It should be noted that the electronicdevice may be any combination thereof, but it is not limited thereto.

In some embodiments, the display panel 10 may include a first substratestructure 100, a second substrate structure 200 and a liquid crystallayer (not shown). The second substrate structure 200 may be opposite tothe first substrate structure 100 and the liquid crystal layer may bedisposed between the first substrate structure 100 and the secondsubstrate structure 200. It is noted that in order to clearly illustratethe configuration of the first substrate structure 100, the secondsubstrate structure 200 is not shown in FIG. 1 and will be discussed infollowing paragraphs. In some embodiments, the first substrate structure100 may include a first base 110, a plurality of protrusion structures120, a plurality of data lines 130 and a plurality of scan lines 140.The plurality of protrusion structures 120 may be disposed on the firstbase 110. One of the plurality of protrusion structures 120 may bedisposed adjacent and opposite to another of the plurality of protrusionstructures 120. The plurality of data lines 130 and the plurality ofscan lines 140 may be disposed on the first base 110. The two adjacentprotrusion structures 120 are arranged along an extending direction ofthe data lines 130. However, the present disclosure is not limitedthereto. In some embodiments, the data lines 130 may include repeatedsegments, and each of the segments may be any shape (for example,wave-shaped). The extending direction of the data lines 130 may bedefined as a direction parallel to the line that connects thecorresponding point of the segments of the data lines 130. In someembodiments, the scan lines 140 may include repeated segments, and eachof the segments may be any shape (for example, wave-shaped). Theextending direction of the scan lines 140 may be defined as a directionparallel to the line that connects the corresponding point of thesegments of the scan lines 140.

In some embodiments, the first base 110 may be flexible bases ornon-flexible bases, but it is not limited thereto. For example, thematerials of the first base 110 may include glass, sapphire, ceramics,plastics, or other suitable materials. The plastic material may be, forexample, polyimine (PI), polyethylene terephthalate (PET), polycarbonate(PC), polyether oxime (PES), polybutylene terephthalate (PBT),polynaphthalene ethylene glycolate (PEN), polyarylate (PAR), othersuitable materials, or a combination thereof, but it is not limitedthereto.

In some embodiments, the X direction and the Y direction may beperpendicular to each other, and the Z direction may be perpendicular tothe X direction and the Y direction, but it is not limited thereto. Insome embodiments, the X direction may be substantially parallel to theextending direction of the scan line 140, the Y direction may besubstantially parallel to the extending direction of the date line 130,and the Z direction may be substantially perpendicular to the topsurface of the first base 110, but it is not limited thereto. In someembodiments, the X direction may be substantially parallel to thearrangement direction of two adjacent protrusion structures 120. In someembodiments, the Y direction may be substantially parallel to thearrangement direction of two adjacent protrusion structures 120.

FIG. 2 is a cross-sectional view illustrating the display panel 10 inaccordance with some embodiments of the present disclosure. For example,the first substrate structure 100 shown in FIG. 2 is illustrated alongthe line A-A shown in FIG. 1 . However, the present disclosure is notlimited thereto. As shown in FIG. 2 , the second substrate structure 200may include a second base 210, a light shielding element 220, a colorfilter 230, an overcoat layer 260 and a main spacer 240. In someembodiments, the light shielding element 220, the color filter 230, theovercoat layer 260 and the main spacer 240 may be disposed on the secondbase 210, the light shielding element 220, the color filter 230, theovercoat layer 260, and the main spacer 240 may be stacked in order, andthe main spacer 240 may extend toward the first substrate structure 100.In some embodiments, the second base 210 may be flexible bases ornon-flexible bases, but it is not limited thereto. For example, thematerials of the second base 210 may include glass, sapphire, ceramics,plastics, or other suitable materials. The plastic material may be, forexample, polyimine (PI), polyethylene terephthalate (PET), polycarbonate(PC), polyether oxime (PES), polybutylene terephthalate (PBT),polynaphthalene ethylene glycolate (PEN), polyarylate (PAR), othersuitable materials, or a combination thereof, but it is not limitedthereto. In some embodiments, the material of the overcoat layer 260 mayinclude an organic photoresist, for example, a thermosettingphotoresist. In some embodiments, the material of the main spacer 240may include an organic photoresist, for example, a patternablephotoresist. Accordingly, the material of the overcoat layer may bedifferent from the material of the main spacer 240, but the presentdisclosure is not limited thereto.

In addition, the first substrate structure 100 may include a pluralityof conductive elements M1 and a plurality of conductive elements M2. Insome embodiments, the plurality of conductive elements M1 and theplurality of conductive elements M2 may be configured to transmitelectric signals or electrically connect to a ground voltage. Theplurality of conductive elements M1 and the plurality of conductiveelements M2 may be separated and insulated by a plurality of insulatingelements R1. The protrusion structure 120 of the first substratestructure 100 is formed by stacking the conductive elements M1 and M2and the insulating elements R1. In some embodiments, the protrusionstructure 120 has a stepped profile or a gentle gradient in across-sectional view. Although the present embodiment is discussedabove, it should be appreciated that the protrusion structure 120 may beformed by stacking any numbers of the conductive elements and theinsulating elements.

In some embodiments, the conductive elements M1 and M2 may be omitted inthe protrusion structure 120. In some embodiments, the first substratestructure 100 may include a conductive layer 150 (shown in FIG. 3 )disposed between the conductive elements M2 and the base 110. Forexample, the material of the conductive layer 150 may include ITO, anyother suitable material, or a combination thereof. In some embodiments,the conductive layer 150 may be omitted. In some embodiments, the firstsubstrate structure 100 may include an alignment layer 160 for improvingthe performance of the display panel 10. The alignment layer 160 may bedisposed on the protrusion structure 120.

In some embodiments, the main spacer 240 has a lowest point 240P, andthe lowest point 240P is the closet point of the main spacer 240 to thefirst substrate structure 100. Thickness M may be defined as thethickness from the lowest point 240P to the upper surface (i.e. theinterface of the overcoat layer 260 and the main spacer 240) of the mainspacer 240. In some embodiments, the thickness M may be measured in theZ direction, which is substantially perpendicular to the upper surfaceof the main spacer 240, but the present disclosure is not limitedthereto. Then, a horizontal line is illustrated at half of the thicknessM and may intersect with the main spacer 240 at two points 240S in thecross-sectional view. That is to say, width T may be defined as the fullwidth at half maximum (FWHM) of the main spacer 240. For example, thewidth T may be measured in the Y direction parallel to the upper surfaceof the main spacer 240. The first substrate structure 100 may have aregion that is vertically projected from the spacer (such as main spacer240) onto the first substrate structure 100, and the region may bedefined as an overlapping region 112. As such, the overlapping region112 may have a width that is substantially the same as the width T ofthe spacer (such as main spacer 240).

Furthermore, the first substrate structure 100 may have two protrudingregions 114 disposed adjacent to the overlapping region 112, and theoverlapping region 112 is disposed between the two protruding regions114. To be more specific, the protruding regions 114 are defined as aregion that is higher than the lowest point of the overlapping region112. In other words, when a plane is defined from the lowest point ofthe overlapping region 112 and parallel to the bottom surface of thebase 110, the protruding regions 114 are located higher than the aboveplane. In some embodiments, the protrusion structures 120 may bedisposed in the protruding regions 114. In some embodiments, a minimumdistance between the two protruding regions 114 is ranged from the widthT of the main spacer 240 to three times the width T of the main spacer240. In some embodiments, the protrusion structure 120 may be formed bystacking a plurality of conductive elements M1 and a plurality ofinsulating elements R1. The protrusion structure 120 may be disposed inthe protruding region and the outline of the uppermost conductiveelement can be observed from the top view (shown in FIG. 1 ), theminimum distance between the two protruding regions 114 in Y directionmay be defined as the minimum distance between the two outlines of theuppermost conductive element of protrusion structure 120, but thepresent disclosure is not limited thereto. Based on the aboveconfiguration, the main spacer 240 may be positioned between the twoprotruding regions 114, and the possibility that the main spacer 240shifts may be reduced.

As defined above, the main spacer 240 may overlap the overlapping region112 of the first substrate structure 100. The first height difference Wmay be defined as the difference between the height of the overlappingregion 112 and the height of either of the two protruding regions 114(such as the left one). The first height difference W is greater thanzero. For example, the first height difference W may be defined as thedifference between the minimum distance from the bottom surface of thebase 110 to the top point of the protruding region 114 and the minimumdistance from the bottom surface of the base 110 to the bottom point ofthe overlapping region 112. In others embodiments, the first heightdifference W may be defined as the difference between the minimumdistance from the top surface of the base 110 to the top point of theprotruding region 114 and the minimum distance from the top surface ofthe base 110 to the bottom point of the overlapping region 112.Furthermore, in some embodiments, the heights of the two protrudingregions 114 adjacent to the overlapping region 112 may be different. Tobe more specific, the height of one of the two protruding regions 114 isless than the height of the other of the two protruding regions 114.However, the present disclosure is not limited thereto.

FIG. 3 is a cross-sectional view illustrating the display panel 10 inaccordance with some embodiments of the present disclosure. It is notedthat FIG. 3 may be illustrated under vacuum environment or before theassembly of the first substrate structure 100 and the second substratestructure 200. As shown in FIG. 3 , the second substrate structure 200may further include a sub spacer 250. The sub spacer 250 may be disposedadjacent to the main spacer 240 and extend towards the first substratestructure 100. In some embodiments, the sub spacer 250 may overlap anoverlapping region 112 of the first substrate structure 100, and theoverlapping region 112 is disposed between two protruding regions 114.

In some embodiments, the sub spacer 250 may have a thickness S, and thethickness S may be measured in the Z direction. In some embodiments, thesecond height difference W between the overlapping region 112 and theprotruding region 114 may be less than the thickness S of the sub spacer250. Based on the above configuration, the sub spacer 250 may beconfigured to support the second substrate structure 200, or reducingthe possibility that the first substrate structure 100 collides with thesecond substrate structure 200. As such, the possibility of damage ofthe display panel 10 may be reduced. In some embodiments, at least twosub spacers 250 may be located between two main spacers 240, but thepresent disclosure is not limited thereto.

In some embodiments, a thickness difference ΔH may be defined as thethickness difference between the main spacer 240 and the sub spacer 250.For example, the thickness difference ΔH may be measured in the Zdirection. The thickness difference ΔH between the main spacer 240 andthe sub spacer 250 may improve the distribution of the liquid-crystallayer after the assembly of the first substrate structure 100 and thesecond substrate structure 200. As such, the yield and/or theperformance of the display panel may be improved. In some embodiments,the defect (such as a mura, or a bubble in the liquid-crystal layer) maybe reduced.

In some embodiments, the heights of the two protruding regions 114adjacent to the sub spacer 250 may be different. To be more specific,the height of one of the two protruding regions 114 is less than theheight of the other of the two protruding regions 114. In someembodiments, a liquid-crystal layer (not shown) may be disposed betweenthe first substrate structure 100 and the second substrate structure200. That is, after assembling the first substrate structure 100 and thesecond substrate structure 200, the liquid-crystal layer may be disposedaround the main spacer 240 and the sub spacer 250. In some embodiments,the liquid-crystal layer may include nematic liquid crystal, smecticliquid crystal, cholesteric liquid crystal, blue phase liquid crystal,or any other suitable liquid-crystal material, the present disclosure isnot limited thereto.

FIG. 4 is a cross-sectional view illustrating the display panel 10 inaccordance with some embodiments of the present disclosure. It is notedthat FIG. 4 may be illustrated under standard atmospheric pressure orafter the assembly of the first substrate structure 100 and the secondsubstrate structure 200. As shown in FIG. 4 , the main spacer 240′ iscompressed to have a thickness M′ that is less than the thickness M. Assuch, the sub spacer 250 may be closer to the first substrate structure100. In some embodiments, the sub spacer 250 may abut the firstsubstrate structure 100. In some embodiments, under standard atmosphericpressure or after the assembly of the first substrate structure 100 andthe second substrate structure 200, the thickness difference between themain spacer 240 and the sub spacer 250 may be a quarter of the thicknessdifference ΔH (0.25ΔH). The second height difference W may be greaterthan a quarter of the thickness difference ΔH. Accordingly, the subspacer 250 may be limited by the protruding regions 114 (or theprotrusion structures 120), and the display panel 10 may be furtherstable, reducing the possibility of misalignment of the first substratestructure 100 and the second substrate structure 200, reduce thepossibility of the panel being scratched and reduce light leakage. Insome embodiments, the thickness of main spacer may be different from thethickness of sub spacer. In some embodiments, the material of mainspacer may be different from the material of sub spacer. In someembodiments, the number of main spacer may be different from the numberof the sub spacer. For example, the number of main spacer may be lessthan the number of sub spacer. In some embodiments, the stiffness ofmain spacer may be different from the stiffness of sub spacer.

FIG. 5A is a top view illustrating the first substrate structure 100 inaccordance with some embodiments of the present disclosure. It should benoted that the first substrate structure 100 in FIG. 5A may include thesame or similar elements as the first substrate structure 100 shown inFIG. 1 , these elements may be denoted as the same or similar numerals,and may not be discussed in detail below. Accordingly, the main spacer240 or the sub spacer 250 may be well-positioned between the protrusionstructures 120.

FIG. 5B is a top view illustrating the second substrate structure 200 inaccordance with some embodiments of the present disclosure. As shown inFIG. 5B, a plurality of color filters may form a group of color filters,and the main spacer 240 may be located between different groups of colorfilters.

FIG. 6A is a top view illustrating the first substrate structure 100 inaccordance with some embodiments of the present disclosure. It should benoted that the first substrate structure 100 in FIG. 6A may include thesame or similar elements as the first substrate structure 100 shown inFIG. 1 , these elements may be denoted as the same or similar numerals,and may not be discussed in detail below. As shown in FIG. 6A, the firstsubstrate structure 100 may further include a plurality of protrusionstructures 125. The protrusion structures 125 may be opposite to eachother. Based on the above configuration, the main spacer 240 or the subspacer 250 may be well aligned and positioned.

FIG. 6B is a top view illustrating the second substrate structure 200 inaccordance with some embodiments of the present disclosure. As shown inFIG. 6B, the main spacer 240 or the sub spacer 250 may be disposedbetween color filters.

FIG. 7A is a top view illustrating the first substrate structure 100 inaccordance with some embodiments of the present disclosure. It should benoted that the first substrate structure 100 in FIG. 7A may include thesame or similar elements as the first substrate structure 100 shown inFIG. 6A, these elements may be denoted as the same or similar numerals,and may not be discussed in detail below. As shown in FIG. 7A, the twoprotrusion structures 125 that are opposite to each other aresubstantially aligned. That is, the corresponding edges of the twoprotrusion structures 125 may be located on the same horizontal plane.Based on the above configuration, the main spacer 240 or the sub spacer250 may be well aligned and positioned.

FIG. 7B is a top view illustrating the second substrate structure 200 inaccordance with some embodiments of the present disclosure. As shown inFIG. 7B, the shape of the main spacer 240 or the sub spacer 250 may berectangular in the top view, but the present disclosure is not limitedthereto. In some embodiment, the shape of the main spacer 240 or the subspacer 250 in the top view may be any suitable shape.

Multiple embodiments of the first substrate structure 100 and the secondsubstrate structure 200 are described above. It should be noted that theabove first substrate structures 100 and the second substrate structures200 may be arbitrarily combined. The present disclosure is noted limitedthereto.

FIG. 8 is a cross-sectional view illustrating the first substratestructure 100 in accordance with some embodiments of the presentdisclosure. As shown in FIG. 8 , the first substrate structure 100 mayfurther include a bulging structure 170. The bulging structure 170 maycorrespond to and overlap the overlapping region 112 (for arranging themain spacer 240 therein). In some embodiments, the bulging structure 170may have a length P, and the length may be less than half of the lengthL of the overlapping region 112. In some embodiments, the bulgingstructure 170 may have a length P, and the length may be less than halfof the width T (shown in FIG. 2 ) of main spacer 240.

FIG. 9 is a cross-sectional view illustrating the bulging structure 170in accordance with some embodiments of the present disclosure. As shownin FIG. 9 , the bulging structure 170 may be formed by stackingconductive elements M1, M2 and insulating elements R1, R2 in order.However, the present disclosure is not limited thereto. In someembodiments, a width of the bulging structure 170 may be defined betweenthe edges of the conductive element M1, and the width of the bulgingstructure 170 may be measured in the Y direction, which is substantiallyparallel to the upper surface of the bulging structure 170, for example.

FIG. 10 is a cross-sectional view illustrating the display panel 10 inaccordance with some embodiments of the present disclosure. As shown inFIG. 10 , the main spacer 240 may overlap the bulging structure 170. Insome embodiment, the main spacer 240 may have certain flexibility, andthe hardness of the bulging structure 170 may be greater than thehardness of the main spacer 240. Accordingly, bulging structure 170 mayextend into the main spacer 240. In other words, the main spacer 240covers the exposed surface of the bulging structure 170. Based on theabove configuration, the possibility that the main spacer 240 shiftsaway from the correct position may be reduced.

As set forth above, the embodiments of the present disclosure mayprovide a display panel and a display device including a substrate withdifferent heights for positioning the spacers. Accordingly, the spacersmay be positioned between the two protruding regions of the substrate,and the possibility that the spacers shift may be reduced. In addition,a thickness difference may be formed between the main spacer and the subspacer so as to improve the distribution of the liquid-crystal layerafter the assembly of the display panel. As such, the yield and/or theperformance of the display panel may be improved. The defect (such as amura or a bubble in the liquid-crystal layer) may also be reduced.

While the embodiments and the advantages of the present disclosure havebeen described above, it should be understood that those skilled in theart may make various changes, substitutions, and alterations to thepresent disclosure without departing from the spirit and scope of thepresent disclosure. It should be noted that different embodiments may bearbitrarily combined as other embodiments as long as the combinationconforms to the spirit of the present disclosure. In addition, the scopeof the present disclosure is not limited to the processes, machines,manufacture, composition, devices, methods and steps in the specificembodiments described in the specification. Those skilled in the art mayunderstand existing or developing processes, machines, manufacture,compositions, devices, methods and steps from some embodiments of thepresent disclosure. Therefore, the scope of the present disclosureincludes the aforementioned processes, machines, manufacture,composition, devices, methods, and steps. Furthermore, each of theappended claims constructs an individual embodiment, and the scope ofthe present disclosure also includes every combination of the appendedclaims and embodiments.

What is claimed is:
 1. An electronic device, comprising: a firstsubstrate structure having a first overlapping region, first twoprotruding regions, a second overlapping region, second two protrudingregions, and third two protruding regions, wherein one of the firstoverlapping region and the second overlapping region is located betweenthe third two protruding regions; and a second substrate structuredisposed opposite to the first substrate structure and comprising a mainspacer and a sub spacer, wherein the main spacer overlaps the firstoverlapping region of the first substrate structure, and the sub spaceroverlaps the second overlapping region of the first substrate structure,wherein the first overlapping region is located between the first twoprotruding regions, and the second overlapping region is located betweenthe second two protruding regions.
 2. The electronic device as claimedin claim 1, wherein the first substrate structure has a first conductiveelement, an insulating element, and a second conductive element at aposition corresponding to one of the first two protruding regions,wherein the first conductive element and the second conductive elementare separated by the insulating element.
 3. The electronic device asclaimed in claim 1, wherein the first substrate structure comprises abase and a data line disposed on the base, and the first two protrudingregions are arranged along an extending direction of the data line. 4.The electronic device as claimed in claim 1, wherein the first substratestructure comprises a scan line disposed on the base, and the third twoprotruding regions are arranged along an extending direction of the scanline.
 5. The electronic device as claimed in claim 1, wherein the secondsubstrate structure comprises a plurality of groups of color filters,and the main spacer is located between different groups of colorfilters.
 6. The electronic device as claimed in claim 1, wherein thefirst substrate structure further comprises a base, a scan line and aplurality of data lines, wherein the scan line and the data lines aredisposed on the base, and a width of the scan line at a position wherethe scan line overlaps one of the data lines is less than a width of thescan line at another position where the scan line does not overlap theone of the data lines.
 7. The electronic device as claimed in claim 1,wherein the first substrate structure further comprises a base, a scanline and two adjacent data lines, wherein the scan line and the twoadjacent data lines are disposed on the base, and the scan line betweenthe two adjacent data lines has two wider portions and a narrowerportion disposed between the two wider portions.